Edward a



71112-2 Washer.'

' PATENTE@ if [nfl-ciales?l @Statics gratis getest ft'iret1 now-Ann A.nLLs'WonTH, on WASHINGTON, DISTRICT or COLUMBIA.

Letters'- Patem No. 71,722, dated December 8, 1867.

NUT-LOCK AND WASHER. l

TQ ALL WHOM IT MAY CONCERN:

Be it known that I, EDWARD A. ELLSWORTH, of the city and county ofWashington, and District of Columbia, have invented a new and usefulImproved Combined Nut-Loek and Washer; and I do hereby declare that thefollowing is a full, clear, and exact description thereof', which willenable others skilled in the art to which Iny'invention appertains tomake and use the same, reference being had to the accompanying drawing,forming a part'of this specification, in whichv Figure 1- is aperspective view of my improved nut-lock and washer,.showing it appliedto a section of a bar of metalor wooden block, Y

f Figure 2 is a transverse vertical section of the same, taken in theline :v fc, iig. ll.

Figure 3 is a perspective View, showing the nut and washer applied to Aaholt, and having vits end turned down, for the purpose of securing it tothe block or bar. 'd

Figures 4 and 5 are top plan vjews`of\the nut-lock and. washer removedfrom the bolt, showing means for 4raising the springend above the nut,whereby the latter is permitted to turn on thc bolt. i

Figures 6, 7, and 8,-are Amodifications of my invention, showing aslight change in theco'nstruction and application.

This inventionrelates to a combined nut-lock and washer, having for itsobject the more perfect securing of nuts upon bolts; and it consists informing from a single piece of metal, a at plate, with one o r more ofits ends or sides turned up, to form a spring-filling upon one or moreedges of the nut; and in the combination of downward projections, one ormore, with the nut-lock and washer, for the purpose of securing it inposition upon the object to which-'it is applied, as will behereinafter-*more fully shown and described. l 'el In the drawings, Arepresents the body or washer, and B the lock or spring, formed in onepiece, by first cuttinfgl oir-.stamping the same from a bar or sheet ofiron or steel or other proper metal, and then turning the end back uponitself, to form the spring. The latter is possessed of a certain amountof elasticity, so .that when lifted up or' raised by any proper means,to admit of the nut being tu'rned lin either direction, it will, whenreleased, assume its fcrnfer position. 'aare ilangeso/r downwardprojections formed upon the body ofthe washer, upon one or more of itssides, and may be single points or flanges extending'thc entire lengthof the body, or provided with serrated edges. C is the holein the bodyYof the washer for the passage of the bolt, and may be made round"orsquare, or of 4any other proper form. When the square hole is used, orvany hole of unequal diameter, the Ishape of the bolt near the'screw-thread must be made to conform to such shape. In this case thedownward projections upon the washer need not be iised, as the unequaldiameters of the bolt and hole prevent the washer from turning upon thebolt. In practice, however, I preferto make the hole round, and to usethe downward projections upon the washer. I

When it is desired tto lock the nut securely in position, the washer isplaced over the end of the bolt, with its downwardprojections Ienteringslight cavities, one or more, previously made in the article to which itis to` 1 be secured, or the flanges may be placed over one or more ofits sides or edges, as in cases where the washer is'.

applied to a wagon-axle, spring, or other narrow strip of metal or wood.4 The nut beingl ,placed over the bolt, and screwed down until ittcuchesthe free end or spring B of the lock,the latter is raised, by anysuitable means, to admit'of the nut being set' securely down upon thewasher, when the spring B is released, and its end rests against theedge of the nut below its upper surface, as shown at rZ-in figs. 1 and 3of the drawings. The

power applied to the nut to turn it, must new press against the lock Bin alongitudinalI direction, or nearly so, and therefore cannot operateto compress or force the spring to yield in either direction. It willthus be seen that a complete andunyielding nut-lock is obtained.Forconvenience in raising the end B, to allow of the nut being turned, Iprovide a slot, c, as shown .in iig. 4, through which a small rod ofiron may be introduced, or a small piece is cut out from each side ofthe spring B, as shown .in iig. v5, for the purpose of grasping it moresecurely with a pair of tongs or other instrument. l3nt do not confinemyself` to any particular configuration of the spring or washer. v

Fig. 6 shows a modification o my inventionyinwhich the spring or lock,B, is extended over the washer A, and provided also with a hole for/thepassage of the bolt. The upper surface of the spring or lockis cut away'1:0 form a shoulder, as seen at c, which fits against the lower edgeofthe nut, to prevent its turning. The body A and leek B are compressedwhen it is desired to turn thenut, so that the latter shall 'clear theshoulder e.

Figs. 'i' and: 8 are modifications of fig. l, showing, in the-formercase, both ends, B and B', turned up, and in the latter ease, s'uch endsare connected by a thin pieee, f, upon which the nut rests wheniuposition.

It will be seen that by the application of a spring, 'or by lmaking/theturned-up end of the washer elastic, the same may be applied to the endsof belts occupying a downward positionnas in ease of bridges, where thenut is secured upon the bolts from vthe under side of the timbers, andin all'maehinery where the nut is applied tothe bolt from the underside.

Having,r thus described my invention, what I claim as new, and desire tesecure by Letters Paten t, is-

1. The springmut lock B, and washer A, constructed in one piece,substantially as described-for the purpose specified. o

2. One or more points or downward projections or flanges, a, incombination with the spring-nut lock and washer, substantially asdescribed, for the purpose specified.

E.- A. ELLSWORTH.

Witnesses:

NATHAN K. ELLswonTn, L. HILL.

